LC3 ( microtubule - associated protein 1 light chain 3 , MAP1 - LC3 )是自噬体膜和自噬溶酶体膜的特征性标志物,可分为LC3 - Ⅰ (分子量为18kDa )和LC3 - Ⅱ (分子量为16kDa )两型。LC3翻译后在未加工前称为前LC3蛋白,在蛋白酶作用下,裂解成缺少C端的LC3 - 1 ,再与脑磷脂( phosphatidylethanolamine , PE )结合修饰形成LC3 - Ⅱ 。因此,检测LC3 - Ⅰ与LC3 - Ⅱ的 ......